CVE-2026-4512

WP reCaptcha by WebDesignBy < 2.0 – Admin+ Stored XSS

The reCaptcha by WebDesignBy WordPress plugin before 2.0 does not sanitize or escape the Site Key setting before outputting it in a JavaScript string context via the grecaptcha_js() function. This allows administrators on multisite installations (who do not have the unfiltered_html capability) to inject arbitrary JavaScript that executes for all visitors to the WordPress login page.

Affected

reCaptcha by WebDesignBy

CVSS v3.1 CNA

3.5 LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

EPSS

0.24% chance of exploitation in the next 30 days, 14th percentile

Published

2026-04-23

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/6dfb4378-fe6a-4462-af10-8e7504e3d593/

References

• CVE Record
• NVD entry